Air and gas engine.



L. KESSLER.

AIR. AND GAS ENGINE. APPLICATION FILED 11.11, 1911.

Patented Oct. 29, 1912.

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L. KESSLER. AIR AND GAS ENGINE. APPLICATION FILED 1'33. 11, 1911.

Patented 0ct.29,1912.

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zen of-the United States,

I illustrated in the Patented Oct. 29,1912. Serial No. 607,917.

Specification of Letters Patent.

Application filed February 11, 1911.

Mounted between the intermediate and front risers, 11 and 12, and supported thereby, is a cylinder, 13, having radiating coolflng flanges, 14, extending therefrom. A piston, 15, having a central passage 17 extend- ;inglongitudinally thereof, is mounted in Esald cylinder, 13, and is connected with the crank, 7, by a yoked or bifurcated connecting rod, 16, the two ends of which are pivthe provision of means for increasing the {oted to the rear or outer end of the piston efliciency of such engines. 3 upon each side of the center thereof.

The class of engines to which my present i lining bearings 18" invention is especially applicable are known brackets, 2, between the as hot air en ines, and my invention conwvhich is mounted a rocker shaft, 19. From sists in providing means for and supplying to such engines a small quantity of such a tends upwardly an arm, 21, the upper end of material as will render the gaseous contents a link 22, with -the of the cylinder more sensitive to the changes left-hand fly wheel. of temperature. 5 suitable oil cup, 23, is located upon the I attain these rcylinder near the base thereof for lubricat- ;ing the piston 15. I a To the head or rear end of the cylinder, 513, is secured a tube, 24, the interior of or engine with my present invention applied which is practically a continuation of the thereto; Fig. 2 is a plan of the structure The diamshown in Fig. 1; F'

To all whom it may concern:

Be it known that I, LOUIS KESSLER, a citiresiding at Chicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in- Air and Gas Engines, of which the following is a specification.

y invention relates to improvements in air and gas engines, and has for its object objects by the mechanism accompanying drawing, in wh1cn Figure 1 is a side elevation of the motor cylinder 16.

section of the mechanism shown in Figs; 1 and 2; Fig. 5 is a section of the valve-in the passage leadingfrom the cylinder to the Q furnace; Fig. 6 is a section of the tight louter end of the tube, ting iston with theconnecting rodattached, :ablecap plate, 24*, from which, along the and ig. 7 is a side elevation, partially in EBJXIS ofthe tube, extends a rod 25, one end section, of the means for supplying the mix- 50f which is fixed in the cap, 24". Mounted ture to the cylinder.

. within the remote end of the tube, 24, is an Similar reference numerals refer to simiiannular collar, 4. Mounted to slide upon lar parts throughout the several views. Ethe rod, 25, is a closed hollow cylindrical The motor is mounted on a convenient jplunger, 26, which is of slightly smaller ase, 1, of suitable size, longitudinally of diameter than thg bore ofthe collar, 4, and which are bolted parallel brackets, 2, which 5h are braced by suitable cross bars or bolts, 3, and have extending vertically from each end ?for the reception of the rod, 25. The diamand approximately the center, risers 5,11 and ;eter of the plunger, 26, is such as to leave but a small clearance between it and the 12: The tops of the right hand or rear pair of risers, 5, are provided with suitable alininner walls of the collars 4 and 24'. From t e inner or rear end of the cylindrical mg bearln s, 6, for the ends of a crank shaft, 7. he crank of the crank shaft is plunger, 26, a rod, 28, extends through the disposed between the bearings, 6, and upon central piston, 15, and into e ends of the shaft which extend beyond the rear end of said rod, is screwed a nut, each bearing are disposed flywheels, 8. A 29, the outer end of which "has pivotally congrooved pulley, 9, is mounted upon the nected therewith one end of a link, 30, the shaft, 7, outside one of the fly wheels, and a other end of which is pivoted to the upper crank bolt, 10, projects laterally from a end of the arm, 20, which is fixed upon-the spoke of the opposite fly wheel for purposes rocker shaft, '19, which latter connects, as to be described hereinafter. before described, with the crank shaft, 7,

meeting edges. The 24, is closed by a suitfurnace,

through the arm, 21, link, 22, and left hand fly wheel, 8. The arm, 20, and link, 30, move between the bifurcated or yoked portion of the connecting rod, 16. A passage leads from the forward portion of the cylingravity seating valve, 48, which closes said passage against a downward flow. From above the valve, 48, the passage-way is carried by tubing, 49, to a channel, 18, running into the outer end of the tube, 24, beyond der, 13, through the cylinder wall, and to the collar, 4.

the outer end of this passage is secured a At a point approximately at which the tubular valve casing, 32, in the upper porpiston, 15, and plunger, 26, come closest tion of which is an outlet valve, 34, to which together, I provide a passage-way 50, leadis connected the lamp to be hereafter de-- ing into the cylinder, 13. Into the outer scribed. About the remote or outer end of the tube, 24, is provided a casing forming a heating chamber, 35, and under the lower end of this casing is fixed a suitable lamp or furnace, 36. A tube, 37, running from the casing, 32, above the outlet valve, 34, to the 36, utilizes such exhaust as there is to force the draft of the furnace and also serves to relieve such pressure as develops end of this passageway is casing, 51, from the valve which extends a valve stem, toward the crank shaft, 7

Upon the valve stem, 53, is mounted a valve, 54, from back of which is a port, 55, leading to the atmosphere. The valve '54, is maintained normally closed by an expansion spring, 56, coiled about the valve screwed a valve chamber, 52, in 53, backwardly when the piston and plunger approach each stem, 53, and extending between the valve other. The connection of the piston, 15, casing, 51, and a collar, 57 secured to the with the crank shaft 7, and the plunger, 26,- valve stem. Mounted upon the crank shaft,

with the arms, 20 and 21, links, 22, and 30, and left hand fly wheel is such that the plunger, 26, precedes the piston, 15, by a quarter of a turn of the shaft, or has a lead of half of thedistance through which said plunger reciprocates, and the plunger is so proportioned as to length that the paths of reciprocation of the piston and plunger coincide through approximately half their extent and the plunger comes closely adjacent to the piston at the end of its inward or crankward stroke.

It will now be seen that when the piston 15 has proceeded half of its outward stroke, the plunger, 26, has reached the outer or remote end of the tube 24, and has entered. the collar, 4. As the piston completes its outward movement the plunger travels backwardly one half its stroke. "When the stroke of the piston toward the crank shaft is completed, the plunger has completed its journey toward the crank shaft and has already moved half of its journey toward the outer or hot end of the tube.

Upon the upper side of the head of the cylinder, 13, is an internally threaded depression into which is screwed the base of a suitable cup, 39, which has been threaded for that purpose. The top of the cup is interiorly threaded and is closed by a cap, 40, having an exteriorly threaded flange, 41, to engage with the thread in the cup. Just below the threading upon the upper part of the cup is a passageway, 42, leading therefrom. This passage-way is led. by tubing, 43, to a needle valve casing, 44, in which is a vertically located needle valve, 45. From beneath the valve, 45, and leading therefrom, is a horizontal passage-way,46,which terminates in a vertical passage, 47. The vertical pass ge, 47, is continued downwardly through the port, 47, to the atmosphere, and in the upper end thereof is mounted a 7, opposite the end of the valve stem and in operative proximity thereto is a cam disk, 58.

In the cup, 39, I place a solution of chlorid of lime which will slowly give ofi chlorin fumes. The needle valve, 45, is opened; which will permit the fumes to pass from 'the cup, 39, through the tubing, 43, to the horizontal passage-way 46.

\Vhen the pressure inside the cylinder 13 and tube, 24, is reduced below that of the atmosphere, air passes from the atmosphere through the port, 47*, lifting the valve, 48, and passing therethrough and through the tubing, 49, and channel, 38, to the interior of the tube, 24, but in so doing it also carries some of the chlorin fumes which have descended through the needle valve, 45, to the horizontal passage-way 46.

I find that when a gaseous mixture, such as above described, is fed to the engine, it is desirable to positively relieve the pressure which develops between the piston, 15, and plunger, 26, and for that rovided the valve, 54, and .its actuating mechanism as above described.

Having thus described myinvention, I claim as new and desire to secure by ters Patent, is

1. In a hot air engine having a cylinder, a tight fitting piston mounted therein, a loose fitting displacing piston also mounted therein, an inlet port in said cylinder, a valve casing connected therewith, a gas generator connected with said casing, and an atmospheric port also connected -with said casing whereby gas and atmospheric air are drawn into said cylinder.

2. In-a hot air engine having a cylinder, a tight fitting loose fitting dlsplacing piston also mounted therein, an inlet port in said cylinder, a valve casing connected therewit a gas gen what Letpurpose 1 havev piston mounted therein, a

erator connected with said casing, an atmosp eric port also connected with said casing,

' port, a valve for cong same, and means for mechanically operating said last mentioned valve.

motor comprising a cylinder, a tight fitting piston mounted therein, a loose fitting piston also mounted therein, means for synchronizing the movement of said pistons,

a gas generator, and means for admitting amlxture of gases to said cylinder.

4. motor comprising a cylinder, a ti ht fitting piston mounted therein, a loose fittin piston also mounted therein, the said cylinder having difi'erent bores at different portions of the path of reciprocation of said "last mentioned piston, means for synchronizing th generator, and means for admitting a mixture of gases to said cylinder.

motor comprising a cylinder, a tight fitting piston mounted therein, a loose fitting piston also mounted therein,.means for synchronizing the movement of said means for heating one end of said a gas generator, a mixture of gases to said cylinder.

6. A m tor comprising a cylinder, a tight fitting piston mounted synchronizing the an inlet port to erator, and means synch inlet furnace and for supplying pressure to said rnace. 8. A motor comprising two alining cylinders, a collar interposed between said cylinders, a tight fitting piston mounted in e movement of said pistons, a gas with the;

one of said cylinders, a loose piston reciprocating in both of said cylinders, means for synchronizing the movement of said plstons, means for hcatmg one end of one of said cylinders and the exhaust port of mg means.

9. A motor comprising two alining cylinders, a collar having a smaller bore interposed between said cylinders, one of said cylinders v collar, a tight fitting piston mounted in said counterbored'cylinder, a loose piston reciprocating in both of said cylinders, means for synchronizing the movement of said pistons, and means for heating one end of one of said cylinders,

motor comprising two alining cylinders, a collar hav'ng a smaller bore interposed between said cylinders, one of said cylinders being counterbored adjacent to said collar, a tight fitting piston mounted in said counterbored cylinder, a loose piston means for associating the cylinder with heatreclprocatlng in both of said cylinders,

piston. In testimony whereof I afi'ix my signature the presence of two witnesses.

LOUIS KESSLER. Witnesses:

H. DE Los HIG' AN, i M A. MlLonn. 

